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Journal of Bacteriology, November 2006, p. 7696-7699, Vol. 188, No. 21
0021-9193/06/$08.00+0     doi:10.1128/JB.00838-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

Serine/Threonine Protein Kinase SpkA in Synechocystis sp. Strain PCC 6803 Is a Regulator of Expression of Three Putative pilA Operons, Formation of Thick Pili, and Cell Motility{triangledown}

Vladimir B. Panichkin,1,2,3 Satoko Arakawa-Kobayashi,1,4 Toku Kanaseki,1 Iwane Suzuki,1,5 Dmitry A. Los,3 Sergey V. Shestakov,2 and Norio Murata1*

National Institute for Basic Biology, Myodaiji, Okazaki 444-8585, Japan,1 Department of Genetics, Moscow State University, Moscow 119899, Russia,2 Institute of Plant Physiology, Moscow 127276, Russia,3 Molecular Membrane Biology Lab, Riken, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan,4 Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Japan5

Received 12 June 2006/ Accepted 8 August 2006

Previous studies showed that a Ser/Thr protein kinase, SpkA, in Synechocystis sp. strain PCC 6803 is involved in cell motility. The present study, in which DNA microarray analysis and electron microscopy were used, demonstrated that SpkA regulates the expression of putative pilA9-pilA10-pilA11-slr2018, pilA5-pilA6, and pilA1-pilA2 operons and is essential for the formation of thick pili.

* Corresponding author. Mailing address: National Institute for Basic Biology, Myodaiji, Okazaki 444-8585, Japan. Phone: 81-557-85-5205. Fax: 81-557-85-5205. E-mail: murata{at}nibb.ac.jp.

{triangledown} Published ahead of print on 17 August 2006.

Journal of Bacteriology, November 2006, p. 7696-7699, Vol. 188, No. 21
0021-9193/06/$08.00+0     doi:10.1128/JB.00838-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Dienst, D., Duhring, U., Mollenkopf, H.-J., Vogel, J., Golecki, J., Hess, W. R., Wilde, A. (2008). The cyanobacterial homologue of the RNA chaperone Hfq is essential for motility of Synechocystis sp. PCC 6803. Microbiology 154: 3134-3143 [Abstract] [Full Text]  


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